This standard provides a method for determining the density of powder coatings. It is based on the gas displacement principle, which calculates density by measuring the volume of inert gas (such as helium or nitrogen) displaced by a sample of known mass. The core testing instrument for this method is a gas comparison pycnometer (also commonly referred to as a gas pycnometer or gas density meter). Due to its ability to effectively avoid issues such as poor wetting of powders by liquids, this method offers high measurement accuracy and is designated as an arbitration test method within the industry, serving as the basis for judgment in cases of quality disputes.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | G50 | ICS | 87 |
| Release Date | 2025-10-05 00:00:00 | Implementation Date | 2026-02-01 00:00:00 |
